In GraphicsMagick from version 1.3.30 to 1.4 snapshot-20190403 Q8, there is a heap-based buffer overflow in the function WriteMATLABImage of coders/mat.c, which allows an attacker to cause a denial of service or possibly have unspecified other impact via a crafted image file. This is related to ExportRedQuantumType in magick/export.c.

coders/xwd.c in GraphicsMagick 1.3.31 allows attackers to cause a denial of service (out-of-bounds read and application crash) by crafting an XWD image file, a different vulnerability than CVE-2019-11008 and CVE-2019-11009.

coders/xwd.c in GraphicsMagick 1.3.31 allows attackers to cause a denial of service (floating-point exception and application crash) by crafting an XWD image file, a different vulnerability than CVE-2019-11008 and CVE-2019-11009.

In GraphicsMagick 1.3.31, the ReadDIBImage function of coders/dib.c has a vulnerability allowing a crash and denial of service via a dib file that is crafted to appear with direct pixel values and also colormapping (which is not available beyond 8-bits/sample), and therefore lacks indexes initialization.